This invention is concerned with novel polysilanes containing olefinic groups which are prepared by reactions of halogen-containing organosilane monomers or mixtures thereof with sodium metal in an appropriate solvent or mixture of solvents. Such polysilane polymers are soluble and thermoplastic, and can be directly converted to silicon carbide compositions by pyrolysis at atmospheric pressure.
本发明涉及一种新型含有
烯烃基团的聚
硅烷,它们是通过卤素含量的有机
硅单体或其混合物与适当溶剂或溶剂混合物中的
钠金属反应制备而成。这种聚
硅烷聚合物是可溶和热塑性的,并且可以通过大气压下的热解直接转化为
碳化
硅组分。